Created
March 20, 2011 20:11
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Hier geht es nicht um Eleganz ;)
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#ifndef HARDWARE_PROFILE_H | |
#define HARDWARE_PROFILE_H | |
// Defines required for the USB stack | |
//#define PROGRAMMABLE_WITH_USB_HID_BOOTLOADER | |
#define self_power 1 | |
/*#define USE_SELF_POWER_SENSE_IO | |
#define tris_self_power TRISBbits.TRISB0 // Input | |
#define self_power RB0*/ | |
#define USE_USB_BUS_SENSE_IO | |
//#define tris_usb_bus_sense TRISCbits.TRISC6 // Input | |
#define USB_BUS_SENSE 1//RC6 | |
#define DEMO_BOARD PICDEM_FS_USB | |
#define PICDEM_FS_USB | |
#define CLOCK_FREQ 48000000 | |
// Fosc frequency (48 Mhz) | |
#define _XTAL_FREQ 48000000 | |
// Common useful definitions | |
#define ON 1 | |
#define OFF 0 | |
#define WRITE 0 | |
#define READ 1 | |
// PIC to hardware pin mapping | |
#define TEMP RA0 | |
#define HEAT RA1 | |
#define LIGHT RA4 | |
// I/O pin definitions | |
#define INPUT_PIN 1 | |
#define OUTPUT_PIN 0 | |
#endif |
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#ifndef MAIN_C | |
#define MAIN_C | |
#include <htc.h> | |
#include "usb.h" | |
#include "HardwareProfile.h" | |
#include "usb_function_hid.h" | |
#include "genericHID.h" | |
// PIC 18F4550 fuse configuration: | |
// Config word 1 (Oscillator configuration) | |
// 20Mhz crystal input scaled to 48Mhz and configured for USB operation | |
__CONFIG(1, USBPLL & IESODIS & FCMDIS & HSPLL & CPUDIV1 & PLLDIV5); | |
// Config word 2 | |
__CONFIG(2, VREGEN & PWRTDIS & BOREN & BORV20 & WDTDIS & WDTPS32K); | |
// Config word 3 | |
__CONFIG(3, PBDIGITAL & LPT1DIS & MCLREN); | |
// Config word 4 | |
__CONFIG(4, XINSTDIS & STVREN & LVPDIS & ICPORTDIS & DEBUGDIS); | |
// Config word 5, 6 and 7 (protection configuration) | |
__CONFIG(5, UNPROTECT); | |
__CONFIG(6, UNPROTECT); | |
__CONFIG(7, UNPROTECT); | |
// local prototypes | |
static void InitialiseSystem(void); | |
void ProcessIO(void); | |
void ShutoffCheck(void); | |
void Standalone(void); | |
int cycles; | |
double tempI; | |
double tempD; | |
double tempA; | |
double tempE; | |
double tempF; | |
int timeI; | |
int timeD; | |
int timeA; | |
int timeE; | |
int timeF; | |
long Trip; | |
int licks; | |
int secs; | |
void main(void) | |
{ | |
InitialiseSystem(); | |
while(1) | |
{ | |
// Check bus status and service USB interrupts. | |
USBDeviceTasks(); | |
//turn off heating element after a second | |
//ShutoffCheck(); | |
// Application-specific tasks. | |
ProcessIO(); | |
} | |
} | |
static void InitialiseSystem(void) | |
{ | |
/* ADC setup *******************************************/ | |
ADCON0 = 0b00000000; // channel 0 (AN0) | |
ADCON1 = 0b00001110; // VSS = Vref- ; VDD = Vref+ ; AN0 pin is analog | |
ADCON2 = 0b10001010; // right justified ; 2Tad ; 32Tosc | |
//20Mhz osc should = 16Tosc but that'd be cutting Tad too close to min | |
ADON=1; // enable A2D converter | |
ADIE=0; // not interrupt driven | |
/* Timer1 setup ****************************************/ | |
GIEH=1; | |
GIEL=1; | |
T1CON = 0b00110101; // 2x 8-Bit, 1:8, source: Fosc/4 | |
// I messed with it all day, but I couldnt get the Timer1 osc to work. | |
// 32 kHz would be simpler than counting 30 'licks'/s with Fosc/4 :( | |
// - Kakabuku | |
//TMR1IF = 0; // overflow cleared | |
//TMR1IE = 1; // enable interrupt | |
/* Ports setup ******************************************/ | |
TRISA = 0b00000001; // temp input - RA0 | |
TRISB = 0b00000000; | |
TRISC = 0b01000000; // usb sense input - RC6 | |
//#if defined(USE_USB_BUS_SENSE_IO) | |
//TRISC6 = INPUT_PIN; // See HardwareProfile.h | |
//#endif | |
// Clear all ports | |
PORTA = 0b00000000; | |
PORTB = 0b00000000; | |
PORTC = 0b00000000; | |
// Initialize the variable holding the handle for the last | |
// transmission | |
USBOutHandle = 0; | |
USBInHandle = 0; | |
USBDeviceInit(); | |
} | |
// Process input and output | |
void ProcessIO(void) | |
{ | |
// If we are not in the configured state just return | |
if((USBDeviceState < CONFIGURED_STATE)||(USBSuspendControl==1)) return; | |
//Check if data was received from the host. | |
if(!HIDRxHandleBusy(USBOutHandle)) | |
{ | |
switch(ReceivedDataBuffer[0]) | |
{ | |
case 0x80: // trigger the nichrome | |
HEAT ^= 1; | |
// (heats slightly more than a second with Trip = 100000) | |
//Trip = ReceivedDataBuffer[1]*100000; | |
// default one second if buf[2] not defined host-side | |
//if (ReceivedDataBuffer[1] == 0) Trip = 100000; | |
break; | |
case 0x81: // transfer parameters | |
cycles = ReceivedDataBuffer[1]; | |
// temperatures are passed as double their actual values | |
tempI = ReceivedDataBuffer[2]/2.0; | |
tempD = ReceivedDataBuffer[3]/2.0; | |
tempA = ReceivedDataBuffer[4]/2.0; | |
tempE = ReceivedDataBuffer[5]/2.0; | |
tempF = ReceivedDataBuffer[6]/2.0; | |
timeI = ReceivedDataBuffer[7]; | |
timeD = ReceivedDataBuffer[8]; | |
timeA = ReceivedDataBuffer[9]; | |
timeE = ReceivedDataBuffer[10]; | |
timeF = ReceivedDataBuffer[11]; | |
//Trip = cycles*100000; // make sure it works | |
Standalone(); // pass parameters? or no need? | |
break; | |
case 0x82: // Read the temperature | |
LIGHT = 0; | |
HEAT = 0; | |
GODONE = 1; // start conversion | |
while(GODONE); // wait till done | |
ToSendDataBuffer[0] = 0x82; | |
ToSendDataBuffer[1] = ADRESH; // return High byte | |
ToSendDataBuffer[2] = ADRESL; // return Low byte | |
// Transmit the response to the host | |
if(!HIDTxHandleBusy(USBInHandle)) | |
{ | |
USBInHandle = HIDTxPacket(HID_EP,(BYTE*)&ToSendDataBuffer[0],64); | |
} | |
break; | |
} | |
// Re-arm the OUT endpoint for the next packet | |
USBOutHandle = HIDRxPacket(HID_EP,(BYTE*)&ReceivedDataBuffer,64); | |
} | |
} | |
void ShutoffCheck(void) | |
{ // can't hurt to have a safety shutoff for the nichrome | |
if (Trip > 0) | |
{ | |
Trip--; | |
} | |
else | |
{ | |
LIGHT = 0; | |
} | |
} | |
// Timer1 Interrupt | |
/* With Fosc/4 as source, and 1:8 PS, we find that 30 interrupts in | |
a row equal about 0.983 seconds, which is precise enough for PCR ;) */ | |
void interrupt isr(void){ | |
if((TMR1IF)&&(TMR1IE)) { | |
if (licks++ >= 30) { | |
licks = 0; | |
secs++; | |
} | |
TMR1IF = 0; | |
} | |
} | |
void Standalone(void) | |
{ | |
TMR1IF = 0; // overflow cleared | |
TMR1IE = 1; // enable interrupt | |
HEAT = 1; | |
while(secs < timeD); | |
HEAT = 0; | |
} | |
#endif |
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#V 0.4 | |
import os | |
import sys, time | |
from PyQt4.QtGui import * | |
from PyQt4.QtCore import * | |
from ctypes import * | |
try: | |
toggle = CDLL("toggle.so") # make toggle.main(seconds) work | |
read = CDLL("temperature.so") | |
lauschen = CDLL("lauschen.so") | |
transfer = CDLL("transfer.so") # no parameter value can exceed 255 [ff] | |
except: | |
lauschen = CDLL('lauschen.dll') | |
toggle = CDLL('toggle.dll') | |
read = CDLL('temperature.dll') | |
transfer = CDLL('transfer.dll') # no parameter value can exceed 255 [ff] | |
class main(QMainWindow): | |
def __init__(self): | |
QMainWindow.__init__(self) | |
self.resize(550, 430) | |
self.setMinimumSize(550, 350) | |
self.setWindowTitle('Poopie') | |
self.center() | |
# no menubar needed | |
# declare timer here (lauschen function might need it before imGange) | |
self.timer = QTimer() | |
self.turtle = 0 | |
# update statusbar every tenth of a second | |
self.lyssna = QTimer() | |
self.lyssna.timeout.connect(self.lauschen) | |
self.lyssna.start(100) | |
self.pieces() | |
def pieces(self): | |
# first, a little humor: | |
Caveman = QIcon('C:\Kennys bajs\caveman.png') | |
fraga = "Kenny's program is not set as the default USB thermocycler control software \ | |
on this computer... Would you like to set it now?" | |
#reply = QMessageBox.question(self, 'Default?',fraga,QMessageBox.Yes | QMessageBox.No) | |
# enable main window widget placement | |
poop = QWidget() | |
self.setCentralWidget(poop) | |
# lay out tabs | |
self.Tabs = QTabWidget() | |
self.tab1 = QWidget() | |
self.tab2 = QWidget() | |
self.tab3 = QWidget() # add in imGange() | |
self.Tabs.addTab(self.tab1, 'Settings') | |
self.Tabs.addTab(self.tab2, 'Info') | |
self.Tabs.setTabIcon(0, QIcon('C:\Kennys bajs\caveman.png')) | |
# tab1 ######################################## | |
self.bd = QPushButton('[Defaults]') | |
self.bd.clicked.connect(self.defaultTemps) | |
self.bRun = QPushButton('Run') | |
self.bRun.clicked.connect(self.Standalone) | |
self.cBox = QCheckBox('Standalone') | |
tab1L = QVBoxLayout() | |
h1 = QHBoxLayout() | |
h2 = QHBoxLayout() | |
h3 = QHBoxLayout() | |
h4 = QHBoxLayout() | |
h5 = QHBoxLayout() | |
h6 = QHBoxLayout() | |
h7 = QHBoxLayout() | |
h8 = QHBoxLayout() | |
for h in [h1, h2, h3, h4, h5, h6, h7, h8]: | |
tab1L.addLayout(h) | |
h.t = QLabel(' ') | |
h.addWidget(h.t, Qt.AlignLeft) | |
if h in [h1, h4, h5, h6, h8]: | |
h.temp = QDoubleSpinBox() | |
h.temp.setAlignment(Qt.AlignRight) | |
h.temp.setFrame(False) | |
h.temp.setDecimals(1) | |
h.temp.setSingleStep(0.5) | |
h.temp.setSuffix(' Celcius') | |
h.time = QSpinBox() | |
h.time.setAlignment(Qt.AlignRight) | |
h.time.setFrame(False) | |
h.time.setPrefix('for ') | |
h.addWidget(h.temp, Qt.AlignLeft) | |
h.addWidget(h.time, Qt.AlignLeft) | |
h.unit = QLabel(' ') | |
h.addWidget(h.unit, Qt.AlignLeft) | |
h3.cyc = QSpinBox() | |
h3.cyc.setRange(1, 40) | |
h3.cyc.setValue(30) | |
h3.cyc.setAlignment(Qt.AlignRight) | |
h3.cyc.setFrame(False) | |
h3.cyc.setSuffix(' Cycles') | |
h3.insertWidget(0, h3.cyc, Qt.AlignLeft) | |
h1.temp.setRange(90, 99)#I | |
h1.temp.setValue(94) | |
h4.temp.setRange(90, 99)#D | |
h4.temp.setValue(93) | |
h5.temp.setRange(50, 65)#A | |
h5.temp.setValue(64) | |
h6.temp.setRange(70, 80)#E | |
h6.temp.setValue(72) | |
h8.temp.setRange(70, 74)#F | |
h8.temp.setValue(72) | |
h1.time.setRange(0, 10)#I | |
h1.time.setValue(5) | |
h4.time.setRange(20, 30)#D | |
h4.time.setValue(30) | |
h5.time.setRange(20, 40)#A | |
h5.time.setValue(30) | |
h6.time.setRange(20, 40)#E | |
h6.time.setValue(30) | |
h8.time.setRange(0, 15)#F | |
h8.time.setValue(10) | |
h1.time.setSuffix(' minutes') | |
h4.time.setSuffix(' seconds') | |
h5.time.setSuffix(' seconds') | |
h6.time.setSuffix(' seconds') | |
h8.time.setSuffix(' minutes') | |
h1.t.setText('Initialization: ') | |
h2.t.setText('------------------------------------------------------------------------------------------------') | |
h2.t.setAlignment(Qt.AlignHCenter) | |
h3.t.setText(' of:') | |
h4.t.setText('Denaturation: ') | |
h5.t.setText('Annealing: ') | |
h6.t.setText('Elongation: ') | |
h7.t.setText('------------------------------------------------------------------------------------------------') | |
h7.t.setAlignment(Qt.AlignHCenter) | |
h8.t.setText('Final Annealing: ') | |
tab1L.addWidget(self.bd) | |
runLevel = QHBoxLayout() | |
tab1L.addLayout(runLevel) | |
runLevel.addWidget(self.bRun) | |
runLevel.addWidget(self.cBox) | |
self.tab1.setLayout(tab1L) | |
# 'load/save config' buttons.. settings saved to .dat file? | |
#globals for later | |
self.cycles = h3.cyc | |
self.tempI = h1.temp | |
self.tempD = h4.temp | |
self.tempA = h5.temp | |
self.tempE = h6.temp | |
self.tempF = h8.temp | |
self.timeI = h1.time | |
self.timeD = h4.time | |
self.timeA = h5.time | |
self.timeE = h6.time | |
self.timeF = h8.time | |
# tab2 ######################################## | |
icon = QLabel(self.tab2) | |
icon.setPixmap(QPixmap('C:\icons\caveman_rock.png')) | |
#how to resize a pixmapped label?? | |
lVersion = QLabel('Development Version 0.5') | |
munch = QLabel('[a product of/by/for DIYbio]') | |
tab2L = QGridLayout() | |
tab2L.addWidget(icon, 0, 0) | |
tab2L.addWidget(lVersion, 1, 0) | |
tab2L.addWidget(munch, 2, 0) | |
self.tab2.setLayout(tab2L) | |
# tab3 ######################################## | |
tab3L = QGridLayout() | |
self.bHalt = QPushButton('Terminate! (Exit Program)') | |
self.bHalt.clicked.connect(app.quit) # why cant prompt 'are you sure?'??? | |
self.lC = QLabel('You may now unplug that hunk of awesomeness') | |
self.lI = QLabel(' ') # ^ this shows if 'standalone' option is selected | |
self.lD = QLabel(' ') | |
self.lA = QLabel(' ') | |
self.lE = QLabel(' ') | |
self.lF = QLabel(' ') | |
self.testLabel = QLabel(' ') | |
tab3L.addWidget(self.testLabel, 5, 1) | |
self.elapsedLabel = QLabel(' ') | |
tab3L.addWidget(self.elapsedLabel, 7, 0) | |
self.leftLabel = QLabel(' ')#('Calculating Remaining Time...') | |
tab3L.addWidget(self.leftLabel, 8, 0) | |
self.stageLabel = QLabel(' ') | |
tab3L.addWidget(self.stageLabel, 7, 1) | |
self.tempLabel = QLabel(' ') | |
tab3L.addWidget(self.tempLabel, 6, 1) | |
tab3L.addWidget(self.lI, 0, 0, 1, 2) | |
tab3L.addWidget(self.lC, 2, 0) | |
tab3L.addWidget(self.lD, 1, 1) | |
tab3L.addWidget(self.lA, 2, 1) | |
tab3L.addWidget(self.lE, 3, 1) | |
tab3L.addWidget(self.lF, 4, 0, 1, 2) | |
tab3L.addWidget(self.bHalt, 6, 0) | |
self.pbar = QProgressBar(self) | |
tab3L.addWidget(self.pbar, 5, 0) | |
#alternative: QProgressDialog, if popup bar wanted | |
self.tab3.setLayout(tab3L) | |
# place tabs onto main window | |
mainLayout = QGridLayout() | |
mainLayout.addWidget(self.Tabs) | |
poop.setLayout(mainLayout) | |
def defaultTemps(self): | |
self.cycles.setValue(30) | |
self.tempI.setValue(94) | |
self.tempD.setValue(93) | |
self.tempA.setValue(64) | |
self.tempE.setValue(72) | |
self.tempF.setValue(72) | |
self.timeI.setValue(5) | |
self.timeD.setValue(30) | |
self.timeA.setValue(30) | |
self.timeE.setValue(30) | |
self.timeF.setValue(10) | |
def closeEvent(self, event): | |
if self.Tabs.isTabEnabled(2): | |
reply = QMessageBox.question(self, 'Message', "Don't quit! The PCR is running!!", QMessageBox.Yes | QMessageBox.No, QMessageBox.No) | |
if reply == QMessageBox.Yes: | |
event.accept() | |
else: | |
event.ignore() | |
def center(self): | |
screen = QDesktopWidget().screenGeometry() | |
size = self.geometry() | |
self.move((screen.width()-size.width())/2, (screen.height()-size.height())/2) | |
def erledigt(self): | |
self.setWindowTitle('Complete!') | |
self.Tabs.setTabEnabled(0, True) | |
self.Tabs.setTabEnabled(1, True) | |
self.Tabs.removeTab(2) | |
self.Tabs.setCurrentIndex(0) | |
self.timer.stop() | |
self.fart(' ') # reset stage label | |
self.stepper = 0 # reset the progress bar | |
def Standalone(self): | |
self.setWindowTitle('Running...') | |
self.Tabs.addTab(self.tab3, 'RUNNING') | |
self.Tabs.setCurrentIndex(2) | |
self.Tabs.setTabEnabled(0, False) | |
self.Tabs.setTabEnabled(1, False) | |
# some stuff relies on the Run tab being 'current index' | |
# so if Info tab is enabled, be sure to account for that | |
if self.cBox.isChecked() == 1: | |
transfer.main( self.cycles.value(), | |
c_double(self.tempI.value()), | |
c_double(self.tempD.value()), | |
c_double(self.tempA.value()), | |
c_double(self.tempE.value()), | |
c_double(self.tempF.value()), | |
self.timeI.value(), | |
self.timeD.value(), | |
self.timeA.value(), | |
self.timeE.value(), | |
self.timeF.value() ) | |
else: | |
self.imGange() | |
def imGange(self): | |
#display values | |
if self.timeI.value() == 0: | |
self.lI.setText('[Initialization disabled]') | |
else: | |
self.lI.setText('Initialization: '+str(self.tempI.value())+' for '+str(self.timeI.value())+' minutes') | |
if self.timeF.value() == 0: | |
self.lF.setText('[Final Anneal disabled]') | |
else: | |
self.lF.setText('Final Annealing: '+str(self.tempF.value())+' for '+str(self.timeF.value())+' minutes') | |
self.lC.setText(str(self.cycles.value())+' cycles of :') | |
self.lD.setText('Denaturation: '+str(self.tempD.value())+' for '+str(self.timeD.value())+' seconds') | |
self.lA.setText('Annealing: '+str(self.tempA.value())+' for '+str(self.timeA.value())+' seconds') | |
self.lE.setText('Elongation: '+str(self.tempE.value())+'for '+str(self.timeE.value())+' seconds') | |
self.seconds = 0 | |
self.temperature = 20 # = read.main() | |
self.salt = 0 | |
self.timer.timeout.connect(self.runner) | |
self.timer.start(1000) | |
# dictionify the values when Run is clicked | |
self.parameters = { | |
'cycles': self.cycles.value(), | |
'tempI': self.tempI.value(), | |
'tempD': self.tempD.value(), | |
'tempA': self.tempA.value(), | |
'tempE': self.tempE.value(), | |
'tempF': self.tempF.value(), | |
'timeI': self.timeI.value(), | |
'timeD': self.timeD.value(), | |
'timeA': self.timeA.value(), | |
'timeE': self.timeE.value(), | |
'timeF': self.timeF.value() } | |
self.cycleThread = CycleThread(self.parameters) | |
self.connect(self.cycleThread, SIGNAL('update(QString)'), self.fart) | |
self.connect(self.cycleThread, SIGNAL('k(QString)'), self.degr) | |
self.connect(self.cycleThread, SIGNAL('bar(QString)'), self.bar) | |
self.cycleThread.start() | |
def runner(self): | |
self.seconds = self.seconds + 1 | |
minutes = self.seconds / 60 | |
overr = self.seconds-(minutes*60) | |
self.elapsedLabel.setText('Gone: '+str(minutes)+'m'+str(overr)+'s') | |
def bar(self, val): | |
self.salt = (int(val)*1. / self.cycles.value())*100 # *1. for decimals | |
self.pbar.setValue(self.salt) | |
def degr(self, degrees): | |
self.tempLabel.setText('Current Temp: '+degrees+'C') | |
def fart(self, text): | |
self.stageLabel.setText(text) | |
def lauschen(self): | |
if lauschen.main() < 0: | |
self.statusBar().showMessage('PCR not connected :/') | |
self.bRun.setEnabled(False) | |
if self.Tabs.currentIndex() == 2: | |
if self.turtle < 50: | |
self.turtle = self.turtle + 1 | |
self.statusBar().showMessage('Plug it back in! Quick! '+str(5-self.turtle/10)) | |
# ^ depends on lyssna-timer's pace | |
else: | |
app.quit() | |
elif lauschen.main() == 0: | |
self.turtle = 0 | |
self.statusBar().showMessage('PCR connected :)') | |
self.bRun.setEnabled(True) | |
##################################################### | |
class CycleThread(QThread): | |
def __init__(self, parameters): | |
QThread.__init__(self) | |
self.parameters = parameters | |
def run(self): | |
prm = self.parameters | |
self.derp = 20 # = read.main() | |
self.tt = 'vaxlar' | |
for i in range(1, prm['cycles']+1): | |
while self.derp < prm['tempD']: | |
time.sleep(.2) | |
self.derp = self.derp + 1 | |
toggle.main() | |
self.emit(SIGNAL('k(QString)'), str(self.derp)) | |
self.dots() | |
# denature: | |
for s in range(0, prm['timeD']+1): | |
if self.derp < prm['tempD']: # elaborate (max .5C less?) | |
toggle.main() | |
time.sleep(.2) | |
self.emit(SIGNAL('update(QString)'), | |
'C.'+str(i)+'; D('+str(s)+'/'+str(prm['timeD'])+')') | |
while self.derp > prm['tempA']: | |
time.sleep(.2) | |
self.derp = self.derp - 1 | |
self.emit(SIGNAL('k(QString)'), str(self.derp)) | |
self.dots() | |
# anneal: | |
for s in range(0, prm['timeA']+1): | |
if self.derp < prm['tempA']: # elaborate (max .5C less?) | |
toggle.main() | |
time.sleep(.2) | |
self.emit(SIGNAL('update(QString)'), | |
'C.'+str(i)+'; A('+str(s)+'/'+str(prm['timeA'])+')') | |
while self.derp < prm['tempE']: | |
time.sleep(.2) | |
self.derp = self.derp + 1 | |
toggle.main() | |
self.emit(SIGNAL('k(QString)'), str(self.derp)) | |
self.dots() | |
# elongate: | |
for s in range(0, prm['timeE']+1): | |
if self.derp < prm['tempD']: # elaborate (max .5C less?) | |
toggle.main() | |
time.sleep(.2) | |
self.emit(SIGNAL('update(QString)'), | |
'C.'+str(i)+'; E('+str(s)+'/'+str(prm['timeE'])+')') | |
self.emit(SIGNAL('bar(QString)'), str(i)) | |
def dots(self): | |
self.tt = '%s.' % self.tt | |
if len(self.tt) > 9: | |
self.tt = 'vaxlar' | |
self.emit(SIGNAL('update(QString)'), self.tt) | |
def __del__(self): #for safety? i guess? | |
self.wait() | |
##################################################### | |
if __name__ == '__main__': | |
app = QApplication(sys.argv) | |
main = main() | |
main.show() | |
sys.exit(app.exec_()) |
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/******************************************************************** | |
FileName: usb_descriptors.c | |
Dependencies: See INCLUDES section | |
Processor: PIC18 or PIC24 USB Microcontrollers | |
Hardware: The code is natively intended to be used on the following | |
hardware platforms: PICDEM™ FS USB Demo Board, | |
PIC18F87J50 FS USB Plug-In Module, or | |
Explorer 16 + PIC24 USB PIM. The firmware may be | |
modified for use on other USB platforms by editing the | |
HardwareProfile.h file. | |
Complier: Microchip C18 (for PIC18) or C30 (for PIC24) | |
Company: Microchip Technology, Inc. | |
Software License Agreement: | |
The software supplied herewith by Microchip Technology Incorporated | |
(the “Company”) for its PIC® Microcontroller is intended and | |
supplied to you, the Company’s customer, for use solely and | |
exclusively on Microchip PIC Microcontroller products. The | |
software is owned by the Company and/or its supplier, and is | |
protected under applicable copyright laws. All rights are reserved. | |
Any use in violation of the foregoing restrictions may subject the | |
user to criminal sanctions under applicable laws, as well as to | |
civil liability for the breach of the terms and conditions of this | |
license. | |
THIS SOFTWARE IS PROVIDED IN AN “AS IS” CONDITION. NO WARRANTIES, | |
WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED | |
TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A | |
PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. THE COMPANY SHALL NOT, | |
IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL OR | |
CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER. | |
********************************************************************* | |
-usb_descriptors.c- | |
------------------------------------------------------------------- | |
Filling in the descriptor values in the usb_descriptors.c file: | |
------------------------------------------------------------------- | |
[Device Descriptors] | |
The device descriptor is defined as a USB_DEVICE_DESCRIPTOR type. | |
This type is defined in usb_ch9.h Each entry into this structure | |
needs to be the correct length for the data type of the entry. | |
[Configuration Descriptors] | |
The configuration descriptor was changed in v2.x from a structure | |
to a BYTE array. Given that the configuration is now a byte array | |
each byte of multi-byte fields must be listed individually. This | |
means that for fields like the total size of the configuration where | |
the field is a 16-bit value "64,0," is the correct entry for a | |
configuration that is only 64 bytes long and not "64," which is one | |
too few bytes. | |
The configuration attribute must always have the _DEFAULT | |
definition at the minimum. Additional options can be ORed | |
to the _DEFAULT attribute. Available options are _SELF and _RWU. | |
These definitions are defined in the usb_device.h file. The | |
_SELF tells the USB host that this device is self-powered. The | |
_RWU tells the USB host that this device supports Remote Wakeup. | |
[Endpoint Descriptors] | |
Like the configuration descriptor, the endpoint descriptors were | |
changed in v2.x of the stack from a structure to a BYTE array. As | |
endpoint descriptors also has a field that are multi-byte entities, | |
please be sure to specify both bytes of the field. For example, for | |
the endpoint size an endpoint that is 64 bytes needs to have the size | |
defined as "64,0," instead of "64," | |
Take the following example: | |
// Endpoint Descriptor // | |
0x07, //the size of this descriptor // | |
USB_DESCRIPTOR_ENDPOINT, //Endpoint Descriptor | |
_EP02_IN, //EndpointAddress | |
_INT, //Attributes | |
0x08,0x00, //size (note: 2 bytes) | |
0x02, //Interval | |
The first two parameters are self-explanatory. They specify the | |
length of this endpoint descriptor (7) and the descriptor type. | |
The next parameter identifies the endpoint, the definitions are | |
defined in usb_device.h and has the following naming | |
convention: | |
_EP<##>_<dir> | |
where ## is the endpoint number and dir is the direction of | |
transfer. The dir has the value of either 'OUT' or 'IN'. | |
The next parameter identifies the type of the endpoint. Available | |
options are _BULK, _INT, _ISO, and _CTRL. The _CTRL is not | |
typically used because the default control transfer endpoint is | |
not defined in the USB descriptors. When _ISO option is used, | |
addition options can be ORed to _ISO. Example: | |
_ISO|_AD|_FE | |
This describes the endpoint as an isochronous pipe with adaptive | |
and feedback attributes. See usb_device.h and the USB | |
specification for details. The next parameter defines the size of | |
the endpoint. The last parameter in the polling interval. | |
------------------------------------------------------------------- | |
Adding a USB String | |
------------------------------------------------------------------- | |
A string descriptor array should have the following format: | |
rom struct{byte bLength;byte bDscType;word string[size];}sdxxx={ | |
sizeof(sdxxx),DSC_STR,<text>}; | |
The above structure provides a means for the C compiler to | |
calculate the length of string descriptor sdxxx, where xxx is the | |
index number. The first two bytes of the descriptor are descriptor | |
length and type. The rest <text> are string texts which must be | |
in the unicode format. The unicode format is achieved by declaring | |
each character as a word type. The whole text string is declared | |
as a word array with the number of characters equals to <size>. | |
<size> has to be manually counted and entered into the array | |
declaration. Let's study this through an example: | |
if the string is "USB" , then the string descriptor should be: | |
(Using index 02) | |
rom struct{byte bLength;byte bDscType;word string[3];}sd002={ | |
sizeof(sd002),DSC_STR,'U','S','B'}; | |
A USB project may have multiple strings and the firmware supports | |
the management of multiple strings through a look-up table. | |
The look-up table is defined as: | |
rom const unsigned char *rom USB_SD_Ptr[]={&sd000,&sd001,&sd002}; | |
The above declaration has 3 strings, sd000, sd001, and sd002. | |
Strings can be removed or added. sd000 is a specialized string | |
descriptor. It defines the language code, usually this is | |
US English (0x0409). The index of the string must match the index | |
position of the USB_SD_Ptr array, &sd000 must be in position | |
USB_SD_Ptr[0], &sd001 must be in position USB_SD_Ptr[1] and so on. | |
The look-up table USB_SD_Ptr is used by the get string handler | |
function. | |
------------------------------------------------------------------- | |
The look-up table scheme also applies to the configuration | |
descriptor. A USB device may have multiple configuration | |
descriptors, i.e. CFG01, CFG02, etc. To add a configuration | |
descriptor, user must implement a structure similar to CFG01. | |
The next step is to add the configuration descriptor name, i.e. | |
cfg01, cfg02,.., to the look-up table USB_CD_Ptr. USB_CD_Ptr[0] | |
is a dummy place holder since configuration 0 is the un-configured | |
state according to the definition in the USB specification. | |
********************************************************************/ | |
/********************************************************************* | |
* Descriptor specific type definitions are defined in: | |
* usb_device.h | |
* | |
* Configuration options are defined in: | |
* usb_config.h | |
********************************************************************/ | |
#ifndef __USB_DESCRIPTORS_C | |
#define __USB_DESCRIPTORS_C | |
/** INCLUDES *******************************************************/ | |
#include "usb.h" | |
#include "usb_function_hid.h" | |
/* Device Descriptor */ | |
ROM USB_DEVICE_DESCRIPTOR device_dsc= | |
{ | |
0x12, // Size of this descriptor in bytes | |
USB_DESCRIPTOR_DEVICE, // DEVICE descriptor type | |
0x0200, // USB Spec Release Number in BCD format | |
0x00, // Class Code | |
0x00, // Subclass code | |
0x00, // Protocol code | |
USB_EP0_BUFF_SIZE, // Max packet size for EP0, see usb_config.h | |
0x04D8, // Vendor ID | |
0xFA25, // Product ID | |
0x0002, // Device release number in BCD format | |
0x01, // Manufacturer string index | |
0x02, // Product string index | |
0x00, // Device serial number string index | |
0x01 // Number of possible configurations | |
}; | |
/* Configuration 1 Descriptor */ | |
ROM BYTE configDescriptor1[]={ | |
/* Configuration Descriptor */ | |
0x09,//sizeof(USB_CFG_DSC), // Size of this descriptor in bytes | |
USB_DESCRIPTOR_CONFIGURATION, // CONFIGURATION descriptor type | |
0x29,0x00, // Total length of data for this cfg | |
1, // Number of interfaces in this cfg | |
1, // Index value of this configuration | |
0, // Configuration string index | |
_DEFAULT | _SELF, // Attributes, see usb_device.h | |
50, // Max power consumption (2X mA) | |
/* Interface Descriptor */ | |
0x09,//sizeof(USB_INTF_DSC), // Size of this descriptor in bytes | |
USB_DESCRIPTOR_INTERFACE, // INTERFACE descriptor type | |
0, // Interface Number | |
0, // Alternate Setting Number | |
2, // Number of endpoints in this intf | |
HID_INTF, // Class code | |
0, // Subclass code | |
0, // Protocol code | |
0, // Interface string index | |
/* HID Class-Specific Descriptor */ | |
0x09,//sizeof(USB_HID_DSC)+3, // Size of this descriptor in bytes | |
DSC_HID, // HID descriptor type | |
0x11,0x01, // HID Spec Release Number in BCD format (1.11) | |
0x00, // Country Code (0x00 for Not supported) | |
HID_NUM_OF_DSC, // Number of class descriptors, see usbcfg.h | |
DSC_RPT, // Report descriptor type | |
HID_RPT01_SIZE,0x00,//sizeof(hid_rpt01), // Size of the report descriptor | |
/* Endpoint Descriptor */ | |
0x07,/*sizeof(USB_EP_DSC)*/ | |
USB_DESCRIPTOR_ENDPOINT, //Endpoint Descriptor | |
HID_EP | _EP_IN, //EndpointAddress | |
_INTERRUPT, //Attributes | |
0x40,0x00, //size | |
0x01, //Interval | |
/* Endpoint Descriptor */ | |
0x07,/*sizeof(USB_EP_DSC)*/ | |
USB_DESCRIPTOR_ENDPOINT, //Endpoint Descriptor | |
HID_EP | _EP_OUT, //EndpointAddress | |
_INTERRUPT, //Attributes | |
0x40,0x00, //size | |
0x01 //Interval | |
}; | |
//Language code string descriptor | |
ROM struct{BYTE bLength;BYTE bDscType;WORD string[1];}sd000={ | |
sizeof(sd000),USB_DESCRIPTOR_STRING,{0x0409 | |
}}; | |
//Manufacturer string descriptor | |
ROM struct{BYTE bLength;BYTE bDscType;WORD string[8];}sd001={ | |
sizeof(sd001),USB_DESCRIPTOR_STRING, | |
{'F','a','r','t','h','e','a','d'}}; | |
//Product string descriptor | |
ROM struct{BYTE bLength;BYTE bDscType;WORD string[10];}sd002={ | |
sizeof(sd002),USB_DESCRIPTOR_STRING, | |
{'S','t','u','p','i','d','f','a','c','e'}}; | |
//Device serial number string descriptor | |
ROM struct{BYTE bLength;BYTE bDscType;WORD string[4];}sd003={ | |
sizeof(sd002),USB_DESCRIPTOR_STRING, | |
{'1','1','1','1'}}; // or should it be sizeof(sd003) and add ROM BYTE at bottom? | |
//Class specific descriptor - HID | |
ROM struct{BYTE report[HID_RPT01_SIZE];}hid_rpt01={ | |
{ | |
0x06, 0x00, 0xFF, // Usage Page = 0xFF00 (Vendor Defined Page 1) | |
0x09, 0x01, // Usage (Vendor Usage 1) | |
0xA1, 0x01, // Collection (Application) | |
0x19, 0x01, // Usage Minimum | |
0x29, 0x40, // Usage Maximum //64 input usages total (0x01 to 0x40) | |
0x15, 0x01, // Logical Minimum (data bytes in the report may have minimum value = 0x00) | |
0x25, 0x40, // Logical Maximum (data bytes in the report may have maximum value = 0x00FF = unsigned 255) | |
0x75, 0x08, // Report Size: 8-bit field size | |
0x95, 0x40, // Report Count: Make sixty-four 8-bit fields (the next time the parser hits an "Input", "Output", or "Feature" item) | |
0x81, 0x00, // Input (Data, Array, Abs): Instantiates input packet fields based on the above report size, count, logical min/max, and usage. | |
0x19, 0x01, // Usage Minimum | |
0x29, 0x40, // Usage Maximum //64 output usages total (0x01 to 0x40) | |
0x91, 0x00, // Output (Data, Array, Abs): Instantiates output packet fields. Uses same report size and count as "Input" fields, since nothing new/different was specified to the parser since the "Input" item. | |
0xC0} // End Collection | |
}; | |
//Array of configuration descriptors | |
ROM BYTE *ROM USB_CD_Ptr[]= | |
{ | |
(ROM BYTE *ROM)&configDescriptor1 | |
}; | |
//Array of string descriptors | |
ROM BYTE *ROM USB_SD_Ptr[]= | |
{ | |
(ROM BYTE *ROM)&sd000, | |
(ROM BYTE *ROM)&sd001, | |
(ROM BYTE *ROM)&sd002 | |
}; | |
/** EOF usb_descriptors.c ***************************************************/ | |
#endif |
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